70639648318 has 8 divisors (see below), whose sum is σ = 109613247480. Its totient is φ = 34101899160.

The previous prime is 70639648307. The next prime is 70639648319. The reversal of 70639648318 is 81384693607.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70639648319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608962428 + ... + 608962543.

It is an arithmetic number, because the mean of its divisors is an integer number (13701655935).

Almost surely, 2^70639648318 is an apocalyptic number.

70639648318 is a deficient number, since it is larger than the sum of its proper divisors (38973599162).

70639648318 is a wasteful number, since it uses less digits than its factorization.

70639648318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217925002.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 70639648318 in words is "seventy billion, six hundred thirty-nine million, six hundred forty-eight thousand, three hundred eighteen".